/* Base Styles & Variables */
:root {
    --primary-color: #0F172A;
    --secondary-color: #3B82F6;
    --accent-color: #10B981;
    --text-color: #334155;
    --text-light: #64748B;
    --bg-color: #FFFFFF;
    --bg-light: #F8FAFC;
    --border-color: #E2E8F0;
    --font-main: 'Noto Sans JP', sans-serif;
    --font-heading: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for fixed navbar */
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff !important;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.85rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Mobile Menu */
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-light);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

/* Abstract Background Shapes */
.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.hero-bg::before, .hero-bg::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.hero-bg::before {
    width: 600px;
    height: 600px;
    background: rgba(59, 130, 246, 0.2);
    top: -100px;
    right: -100px;
    animation: float 10s infinite ease-in-out alternate;
}

.hero-bg::after {
    width: 400px;
    height: 400px;
    background: rgba(16, 185, 129, 0.15);
    bottom: -50px;
    right: 300px;
    animation: float 12s infinite ease-in-out alternate-reverse;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 30px) scale(1.1); }
}

/* Common Sections */
.section {
    padding: 6rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.section-title span {
    display: block;
    font-size: 1rem;
    color: var(--secondary-color);
    font-family: var(--font-main);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0.5rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: #fff;
    padding: 3rem 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
    border-color: rgba(59, 130, 246, 0.3);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* About Us (Company Profile) */
.about-content {
    background: #fff;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
}

.company-table {
    width: 100%;
    border-collapse: collapse;
}

.company-table th, .company-table td {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
    border-bottom: none;
}

.company-table th {
    width: 25%;
    color: var(--primary-color);
    font-weight: 600;
}

.company-table td {
    color: var(--text-color);
}

/* Privacy Policy */
.privacy-content {
    background: #fff;
    border-radius: 16px;
    padding: 4rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
}

.privacy-content h3 {
    margin: 2.5rem 0 1rem;
    font-size: 1.2rem;
    color: var(--primary-color);
    border-left: 4px solid var(--secondary-color);
    padding-left: 1rem;
}

.privacy-content p, .privacy-content li {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.privacy-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: #fff;
    padding: 5rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand h2 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.footer-brand h2 span {
    color: var(--secondary-color);
}

.footer-brand p {
    color: #94A3B8;
    max-width: 300px;
}

.footer-contact h3 {
    color: #fff;
    margin-bottom: 1rem;
}

.footer-contact p {
    color: #94A3B8;
    margin-bottom: 1.5rem;
    max-width: 300px;
}

.contact-email {
    display: inline-block;
    font-size: 1.2rem;
    color: #fff;
    font-weight: 600;
    transition: var(--transition);
}

.contact-email:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #64748B;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .about-content, .privacy-content {
        padding: 2rem;
    }

    .company-table th, .company-table td {
        display: block;
        width: 100%;
        padding: 0.75rem 0;
    }
    
    .company-table th {
        padding-bottom: 0;
        border-bottom: none;
    }

    .footer-content {
        flex-direction: column;
    }
}